Volume

The formula sheet shows how to calculate the volume of a sphere.

\(7400\text{ cm}^3\)

What is the height of the cylinder itself, without the hemisphere on top?

\(3900\text{ cm}^3\)

How can we deal with the fraction, \(\frac{1}{3}\)?

\(10.0\text{ cm}\)


Equations and Inequations

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Circle Geometry

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Scientific Notation

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Expanding Brackets

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Similar Shapes

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Percentages

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Numerical Fractions

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Pythagoras

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Straight Lines

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Functions

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Factorising

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Statistics

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Quadratics

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Arcs and Sectors

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Changing the Subject

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Surds

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Indices

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Trig Graphs

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Simultaneous Equations

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Area and Sine Rules

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Algebraic Fractions

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NOTE: To use the widgets in the compiled HTML file, you need to have a JavaScript-enabled browser.

Fill-In-The-Blanks (fitb())

Create fill-in-the-blank questions using fitb(), providing the answer as the first argument.

You can also create these questions dynamically, using variables from your R session.

The blanks are case-sensitive; if you don't care about case, use the argument ignore_case = TRUE.

If you want to ignore differences in whitespace use, use the argument ignore_ws = TRUE (which is the default) and include spaces in your answer anywhere they could be acceptable.

You can set more than one possible correct answer by setting the answers as a vector.

You can use regular expressions to test answers against more complex rules.

Multiple Choice (mcq())

True or False (torf())

Longer MCQs (longmcq())

When your answers are very long, sometimes a drop-down select box gets formatted oddly. You can use longmcq() to deal with this. Since the answers are long, It's probably best to set up the options inside an R chunk with echo=FALSE.

What is a p-value?

What is true about a 95% confidence interval of the mean?

Checked sections

Create sections with the class webex-check to add a button that hides feedback until it is pressed. Add the class webex-box to draw a box around the section (or use your own styles).

I am going to learn a lot:

What is a p-value?

Hidden solutions and hints

You can fence off a solution area that will be hidden behind a button using hide() before the solution and unhide() after, each as inline R code. Pass the text you want to appear on the button to the hide() function.

If the solution is an RMarkdown code chunk, instead of using hide() and unhide(), simply set the webex.hide chunk option to TRUE, or set it to the string you wish to display on the button.

Recreate the scatterplot below, using the built-in cars dataset.

See the documentation for plot() (?plot)

plot(cars$speed, cars$dist)